Mercedes-Benz S420 Exhaust Gas Recirculation/EGR Valve Replacement at your home or office.

Our mobile mechanics offer services 7 days a week. Upfront and transparent pricing.

Estimate price near me

Service Location

Customer Ratings

(15)

Included for free with this service

Online Booking

Mechanic comes to you

12-month / 12k-mile warranty

Free 50 point safety inspection

Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.

Customer Ratings

(15)

Exhaust Gas Recirculation/EGR Valve Replacement Service

How much does a Exhaust Gas Recirculation/EGR Valve Replacement cost?

On average, the cost for a Mercedes-Benz S420 Exhaust Gas Recirculation/EGR Valve Replacement is $544 with $404 for parts and $140 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
1995 Mercedes-Benz S420V8-4.2LService typeExhaust Gas Recirculation/EGR Valve ReplacementEstimate$965.28Shop/Dealer Price$1174.15 - $1786.59
1994 Mercedes-Benz S420V8-4.2LService typeExhaust Gas Recirculation/EGR Valve ReplacementEstimate$954.87Shop/Dealer Price$1160.30 - $1769.37
1997 Mercedes-Benz S420V8-4.2LService typeExhaust Gas Recirculation/EGR Valve ReplacementEstimate$965.15Shop/Dealer Price$1173.19 - $1790.00
1999 Mercedes-Benz S420V8-4.2LService typeExhaust Gas Recirculation/EGR Valve ReplacementEstimate$965.15Shop/Dealer Price$1173.19 - $1790.00
1996 Mercedes-Benz S420V8-4.2LService typeExhaust Gas Recirculation/EGR Valve ReplacementEstimate$965.15Shop/Dealer Price$1175.77 - $1794.51
1998 Mercedes-Benz S420V8-4.2LService typeExhaust Gas Recirculation/EGR Valve ReplacementEstimate$965.15Shop/Dealer Price$1173.44 - $1790.43
Show example Mercedes-Benz S420 Exhaust Gas Recirculation/EGR Valve Replacement prices

What is the Exhaust Gas Recirculation/EGR Valve all about?

The EGR (Exhaust Gas Recirculation) valve helps lower the car’s exhaust emissions (gases from the tailpipe). It recirculates the portion of the gasses coming out of the engine by putting in back into the intake manifold, where the engine can burn it again, thereby reducing the emissions.

The EGR valve is located in the engine compartment (underneath the hood). Most engines require exhaust gas recirculation to meet emissions standards. If the EGR valve has gone bad, the car will not pass emissions.

Exhaust Gas Recirculation Valve

Keep in mind:

During the EGR valve replacement, your mechanic should also inspect the vacuum hoses connected to the EGR valve. If the vacuum hoses are cracked (leaking), the EGR valve will not function properly.

How it's done:

  • Scan the computer system in the car.
  • Check all vacuum related hoses to EGR valve.
  • Test EGR transducer.
  • Verify the EGR port is not plugged.
  • Remove and replace the EGR valve.
  • Clean the carbon deposit on EGR pintle.
  • Clear the trouble codes and test for proper operation of EGR valve.

Our recommendation:

It is a good idea to get an air induction (carbon cleaning) service performed every 50,000 miles. This will clean out any sludge or carbon build up in the air intake system. Always keep up with regular oil changes; it will help prevent sludge build up in the engine.

What common symptoms indicate you may need to replace the Exhaust Gas Recirculation/EGR Valve?

  • Check Engine light is on.
  • Possible loss of power.
  • Car will not run smoothly (shake, stumble, may stall).

How important is this service?

The EGR valve helps your vehicle recycle gas. The EGR valve is responsible for taking the gas that comes out of the engine, and sending it through the intake manifold, where the engine can utilize it again. Without the EGR valve your vehicle will not recycle and reuse any of its gas, which increases the emissions. Without the EGR, your car will not pass an emission inspection.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(15)

Rating Summary
14
0
1
0
0
14
0
1
0
0

Tien

24 years of experience
903 reviews
Tien
24 years of experience
Mercedes-Benz S420 V8-4.2L - Water Pump - Moraga, California

Manuel

13 years of experience
140 reviews
Manuel
13 years of experience
Mercedes-Benz S420 V8-4.2L - Car is overheating - Naples, Florida
Very prom and good mechanic .

Melvin

18 years of experience
221 reviews
Melvin
18 years of experience
Mercedes-Benz S420 V8-4.2L - Trunk does not lock or open - Atlanta, Georgia
I am a independent private driver, and my trunk, passenger doors, engine light, sunroof all began to malfunction at the same time on my s500 Mercedes Melvin came out in the cold and in 30 minutes knew exactly what all the problems were. His knowledge is superb! I will be using Mr Melvin again.

Kenneth

21 years of experience
870 reviews
Kenneth
21 years of experience
Mercedes-Benz S420 V8-4.2L - Oil Change - Los Angeles, California
He is the real deal... On time, did great work, very all together" good man and mechanic...... Thanks Kenneth.

Excellent Rating

(15)

Rating Summary
14
0
1
0
0
14
0
1
0
0
Number of Mercedes-Benz S420 services completed
165+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

P0042 OBD-II Trouble Code: HO2S Heater Control Circuit (Bank 1 Sensor 3)
P0042 P0042 code definition P0042 is telling us the ECM has detected a fault in the heated oxygen sensor control circuit for bank 1 sensor 3. This can be associated with P0043 and P0044 What the P0042 code means The...
Kentucky Parking Laws: Understanding the Basics
The The counties, as well as the cities and towns, throughout Kentucky will tend to have their own regulations and fine schedules for parking violations. It is important for drivers to learn the regulations in the area where they live,...
Rules of the Road For Vermont Drivers
Are Are you a lifetime Vermonter, or have you just moved to the freedom and unity state? Whatever the case may be, if you’re doing any driving in Vermont, you should be familiar with the rules of the road, so...

overheating no cooling fans

The relays are turned on by the Powertrain Control Module (PCM) by grounding the control wire of the relays. The PCM needs input from the engine coolant sensor above the water pump to sense whether the engine is overheating before...

Can missing wheel studs affect 4wd?

In most situations, I can't think of a situation where missing wheel studs will prevent you from engaging the four wheel drive system. If a piece of a broken wheel stud falls behind the flange, it can cause the wheel...

I have a short that drains the battery overnight.

There is a parasitic load applied to your battery with the ignition is off. Keep the test light on the battery and turn on one thing at a time and watch the light. If the light goes out, then that...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com